Strengthen Notarius determinism tests

internal/config/notarius_test.go

@@ -297,37 +297,87 @@ func TestNotariusValidationFailureDoesNotMutateConfig(t *testing.T) {
 	}
 }
 
-func TestNotariusNormalizationIsIndependentOfMapInsertionOrder(t *testing.T) {
-	first := validNotariusConfig()
-	first.References = make(map[string]string)
-	first.References[" party "] = " narratio.input.party "
-	first.References["chunk . players"] = " narratio.input.players "
-	first.Outputs = make(map[string]NotariusOutputConfig)
-	first.Outputs[" npc_registry "] = NotariusOutputConfig{
-		LaneID: " npc-registry ", MediaType: " application/json ",
-		SchemaID: " notarius.dnd.npc_registry ", SchemaVersion: " v1 ",
+func TestNotariusNormalizationProducesCanonicalValues(t *testing.T) {
+	cfg := validNotariusConfig()
+	cfg.References = map[string]string{
+		" party ":         " narratio.input.party ",
+		"chunk . players": " narratio.input.players ",
 	}
-	first.Outputs["spells"] = NotariusOutputConfig{
-		LaneID: " spells ", MediaType: " application/json ",
-		SchemaID: " notarius.dnd.spells ", SchemaVersion: " v1 ",
+	cfg.Outputs = map[string]NotariusOutputConfig{
+		" npc_registry ": {
+			LaneID: " npc-registry ", MediaType: " application/json ",
+			SchemaID: " notarius.dnd.npc_registry ", SchemaVersion: " v1 ",
+		},
+		"spells": {
+			LaneID: " spells ", MediaType: " application/json ",
+			SchemaID: " notarius.dnd.spells ", SchemaVersion: " v1 ",
+		},
 	}
 
-	second := validNotariusConfig()
-	second.References = make(map[string]string)
-	second.References["chunk . players"] = " narratio.input.players "
-	second.References[" party "] = " narratio.input.party "
-	second.Outputs = make(map[string]NotariusOutputConfig)
-	second.Outputs["spells"] = first.Outputs["spells"]
-	second.Outputs[" npc_registry "] = first.Outputs[" npc_registry "]
+	if err := validateNotarius(cfg, nil); err != nil {
+		t.Fatalf("validateNotarius() error = %v", err)
+	}
+	wantReferences := map[string]string{
+		"party":         "narratio.input.party",
+		"chunk.players": "narratio.input.players",
+	}
+	if !reflect.DeepEqual(cfg.References, wantReferences) {
+		t.Fatalf("references = %#v, want %#v", cfg.References, wantReferences)
+	}
+	if _, ok := cfg.Outputs[" npc_registry "]; ok {
+		t.Fatal("outputs retain unnormalized key")
+	}
+	if got := cfg.Outputs["npc_registry"]; got.LaneID != "npc-registry" || got.MediaType != "application/json" || got.SchemaID != "notarius.dnd.npc_registry" || got.SchemaVersion != "v1" {
+		t.Fatalf("normalized npc_registry output = %#v", got)
+	}
+}
 
-	if err := validateNotarius(first, nil); err != nil {
-		t.Fatalf("validateNotarius(first) error = %v", err)
+func TestNotariusDiagnosticsUseSortedMapKeys(t *testing.T) {
+	tests := []struct {
+		name      string
+		configure func(*NotariusConfig, []string)
+		wantField string
+	}{
+		{
+			name: "references",
+			configure: func(cfg *NotariusConfig, keys []string) {
+				cfg.References = make(map[string]string, len(keys))
+				for _, key := range keys {
+					cfg.References[key] = "narratio.input.unsupported"
+				}
+			},
+			wantField: "pipeline.notarius.references.alpha",
+		},
+		{
+			name: "outputs",
+			configure: func(cfg *NotariusConfig, keys []string) {
+				cfg.References = nil
+				cfg.Outputs = make(map[string]NotariusOutputConfig, len(keys))
+				for _, key := range keys {
+					cfg.Outputs[key] = NotariusOutputConfig{LaneID: key}
+				}
+			},
+			wantField: "pipeline.notarius.outputs.alpha.media_type",
+		},
 	}
-	if err := validateNotarius(second, nil); err != nil {
-		t.Fatalf("validateNotarius(second) error = %v", err)
-	}
-	if !reflect.DeepEqual(first, second) {
-		t.Fatalf("normalized configs differ:\nfirst:  %#v\nsecond: %#v", first, second)
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			orders := [][]string{{"zeta", "alpha"}, {"alpha", "zeta"}}
+			diagnostics := make([]string, 0, len(orders))
+			for _, keys := range orders {
+				cfg := validNotariusConfig()
+				test.configure(cfg, keys)
+				err := validateNotarius(cfg, nil)
+				if err == nil || !strings.Contains(err.Error(), test.wantField) {
+					t.Fatalf("validateNotarius() error = %v, want field %q", err, test.wantField)
+				}
+				diagnostics = append(diagnostics, err.Error())
+			}
+			if diagnostics[0] != diagnostics[1] {
+				t.Fatalf("equivalent maps produced different diagnostics:\nfirst:  %s\nsecond: %s", diagnostics[0], diagnostics[1])
+			}
+		})
 	}
 }